C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What version EPROM do I have

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Old Dec 20, 2001 | 09:58 PM
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Bluevette85's Avatar
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Default What version EPROM do I have

How can I tell if I have the latest Eprom for my 85. The dealer says it was last updated 11/92 and I want to know it I have an older version before ordering the new one.

Walt
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Old Dec 20, 2001 | 11:06 PM
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Default Re: What version EPROM do I have (Bluevette85)

My stock Mem-Cal has a some numbers on the side:
68767-probably the part number
8727-looks like a date code.

Pull yours and check it out. The dealer can translate for you.
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Old Dec 21, 2001 | 01:09 AM
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Default Re: What version EPROM do I have (Bluevette85)

I think HLH3200 is the latest revision for 1985 automatic, not sure about stick. If you have an earlier number, then you have the older chip.

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Old Dec 21, 2001 | 01:49 AM
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Default Re: What version EPROM do I have (Marcho Polo)

HLH 3200 is what is on the chip.

Thanks.
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Old Dec 21, 2001 | 07:33 AM
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Default Re: What version EPROM do I have (Bluevette85)

How can I tell if I have the latest Eprom for my 85. The dealer says it was last updated 11/92 and I want to know it I have an older version before ordering the new one.
Wow! GM actually updated the code for 7 years...I'm impressed...I'd been told 3 years was the max...

BTW: We do have a PROM/ECM Forum now... -
http://forums.corvetteforum.com/zeroforum?id=82



[Modified by Rich B., 6:36 AM 12/21/2001]
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